Results 101 to 110 of about 6,813 (290)

Concept, Tests, and Optimum Design of Novel Negative Stiffness Friction Dampers for Seismic Protection of Long‐Span Bridges

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Viscous dampers (VDs) are widely used to mitigate the excessive responses of long‐span bridges. However, VDs face some intricate challenges in engineering practices, including high damping coefficient requirement, potential base shear amplification and tremendous damping force under high velocity. To address these issues, this study develops a
Ruisheng Ma, Shaodong Jiang, Kun Xu, Qiang Han, Xiuli Du, Kaiming Bi   +5 more
wiley   +1 more source

Generalized Nearest-Neighbor Distance and Hawkes Point Process Modeling Applied to Mining-Induced Seismicity

The Seismic Record
Modeling seismic activity rates and clustering plays an important role in studies of induced seismicity associated with mining and other resource extraction operations.
Mohammadamin Sedghizadeh, Robert Shcherbakov, Matthew van den Berghe   +2 more
doaj   +1 more source

Multi‐Hazard Shaking‐Tsunami Fatality Risk Estimation for Coastal Communities

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT This study develops a multi‐hazard fatality risk model for a coastal community (Tofino) on Vancouver Island, Canada, subjected to earthquake‐tsunami threats from the Cascadia subduction megathrust events. The model incorporates variable population distributions and uncertain fatality rate models, in addition to other key model components, such
Katsuichiro Goda
wiley   +1 more source

Evidence for Far-Field Wastewater Disposal Causing Recent Increases in Seismicity in Central and Northern Kansas

Seismica
The rate of felt earthquakes in Kansas increased dramatically in 2014, where most seismicity initially occurred in southern Kansas, and was attributed to large-volume wastewater disposal (WD) near the Oklahoma-Kansas border.
Shannon Fasola, Mike Brudzinski, Noel Jackson   +2 more
doaj   +1 more source

A data-driven approach for the evaluation of seismicity risks associated with CO2 injection [PDF]

, 2022
This work examined the application of Bayes’ theorem in evaluating the risk of induced seismicity associated with CO2 sequestration in the Arbuckle Group, which extends across the southern Mid-Continent of the US.
Ochie, Karen
core  

Weak‐Story Mitigation and Drift Redistribution in Moment‐Resisting Frames Using Stepping Rocking Walls

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT This study investigates the seismic response of moment‐resisting frames retrofitted with a stepping rocking wall, with emphasis on weak‐story mitigation and residual drift reduction under both ordinary and pulse‐like ground motions. Nonlinear response‐history analyses are conducted on 9‐story and 20‐story SAC Los Angeles frames.
Mehrdad Aghagholizadeh
wiley   +1 more source

Reduced Injection Rates and Shallower Depths Mitigated Induced Seismicity in Oklahoma

The Seismic Record
The proximity of wastewater disposal to the Precambrian basement is a critical factor influencing induced earthquake rates in the Central United States, but the impact of reducing injection depths has not been widely demonstrated.
Robert J. Skoumal, Andrew J. Barbour, Justin L. Rubinstein, Margaret E. Glasgow   +3 more
doaj   +1 more source

Decomposing significant factors of Coulomb stress and its components in injection-induced seismicity

Journal of Rock Mechanics and Geotechnical Engineering
Injection-induced seismicity has been a focus of industry for decades as it poses great challenges to the associated risk mitigation and hazard assessment.
Yao Zhang, Qi Li, Yongsheng Tan, Xiaying Li, Yiyan Zhong   +4 more
doaj   +1 more source

The importance of earthquake interactions for injection‐induced seismicity: Retrospective modeling of the Basel Enhanced Geothermal System

Geophysical Research Letters, 2016
We explore the role of earthquake interactions during an injection‐induced seismic sequence. We propose a model, which considers both a transient pressure and static stress redistribution due to event interactions as triggering mechanisms. By calibrating
Flaminia Catalli, Antonio P. Rinaldi, Valentin Gischig, Massimo Nespoli, Stefan Wiemer   +4 more
doaj   +1 more source

Towards controlling induced seismicity

, 2020
Induced seismicity has become widespread as a result of fluid injection in the subsurface for energy related activities, such as geothermal energy, geologic carbon storage and subsurface energy storage.
Vilarrasa, Víctor
core